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import express, { type Express } from "express";
import fs from "fs";
import path, { dirname } from "path";
import { fileURLToPath } from "url";
import { createServer as createViteServer, createLogger } from "vite";
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
import { type Server } from "http";
import viteConfig from "../vite.config";
const viteLogger = createLogger();
export function log(message: string, source = "express") {
const formattedTime = new Date().toLocaleTimeString("en-US", {
hour: "numeric",
minute: "2-digit",
second: "2-digit",
hour12: true,
});
console.log(`${formattedTime} [${source}] ${message}`);
}
export async function setupVite(app: Express, server: Server) {
const vite = await createViteServer({
...viteConfig,
configFile: false,
customLogger: {
...viteLogger,
error: (msg, options) => {
if (
msg.includes("[TypeScript] Found 0 errors. Watching for file changes")
) {
log("no errors found", "tsc");
return;
}
if (msg.includes("[TypeScript] ")) {
const [errors, summary] = msg.split("[TypeScript] ", 2);
log(`${summary} ${errors}\u001b[0m`, "tsc");
return;
} else {
viteLogger.error(msg, options);
process.exit(1);
}
},
},
server: {
middlewareMode: true,
hmr: { server },
},
appType: "custom",
});
app.use(vite.middlewares);
app.use("*", async (req, res, next) => {
const url = req.originalUrl;
try {
const clientTemplate = path.resolve(
__dirname,
"..",
"client",
"index.html",
);
// always reload the index.html file from disk incase it changes
const template = await fs.promises.readFile(clientTemplate, "utf-8");
const page = await vite.transformIndexHtml(url, template);
res.status(200).set({ "Content-Type": "text/html" }).end(page);
} catch (e) {
vite.ssrFixStacktrace(e as Error);
next(e);
}
});
}
export function serveStatic(app: Express) {
const distPath = path.resolve(__dirname, "public");
if (!fs.existsSync(distPath)) {
throw new Error(
`Could not find the build directory: ${distPath}, make sure to build the client first`,
);
}
app.use(express.static(distPath));
// fall through to index.html if the file doesn't exist
app.use("*", (_req, res) => {
res.sendFile(path.resolve(distPath, "index.html"));
});
}
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